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Abstract

Here, the inventors report that natural WT SARS-CoV-2 infection induces memory B cells expressing potently neutralizing antibodies against VOCs. Moreover, natural WT infection largely induced antibodies against spike epitopes outside of the RBD, most of which were non-neutralizing against WT and VOCs. Additionally. RBD-binding antibodies could be categorized into 3 distinct classes based on their binding profiles against RBD mutant constructs. The inventors identified VOC-neutralizing antibodies against three distinct regions of the spike protein, including the two epitopes on the RBD and one epitope in the NTD. Together, this study identifies that natural WT infection induces memory B cells that can produce neutralizing antibodies against recent SARS-CoV-2 VOCs and have the potential to be recalled by vaccination.

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First Claim